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Engine<br />
8th VIN<br />
Digit**<br />
Ford OBD1 Systems<br />
TEST CONNECTORS<br />
Fuel Systems<br />
(Carburetor<br />
Model) Application/Special Notes<br />
1991-1994 (Cont)<br />
3.0L V-6 U EFI, SEFI, SFI Aerostar, Ranger<br />
4.0L V-6 X EFI, MFI Aerostar, Explorer, Ranger<br />
4.9L I-6 Y, H EFI, MFI, SFI<br />
5.0L V-8 N EFI, MFI, SFI<br />
5.8L V-8 H, R EFI, MFI, SFI<br />
7.3L V-8 M Diesel<br />
7.3L V-8 K Turbo Diesel<br />
7.5L V-8 G EFI, MFI<br />
3.0L V-6 U SFI<br />
Bronco, E and F Series<br />
Trucks/Vans (8500 lb. GVW or<br />
less only)<br />
E and F Series Trucks/Vans<br />
(Excludes 1994 diesel models)<br />
1995<br />
Aerostar (Excludes Explorer,<br />
Ranger and Windstar)<br />
4.0L V-6 X SFI<br />
4.9L I-6 Y SFI E and F series Trucks and<br />
Vans (Excludes Natural Gas<br />
equipped vehicles)<br />
5.0L V-8 N SFI Bronco, E and F series Trucks<br />
5.8L V-8 H, R MFI and Vans<br />
7.5L V-8 G MFI E-350; F-250-350 (Excludes<br />
California ); F-Super Duty<br />
(Excludes Diesel)<br />
Computer<br />
System<br />
EEC-IV<br />
EEC-IV<br />
NOTES<br />
* Carburetor Model. Carburetor model numbers are usually stamped on top of the carburetor,<br />
or on a metal tab attached to the carburetor. Consult your vehicle’s repair manual for<br />
proper identification.<br />
**VIN Number. The VIN number(s) used in this column identify the vehicle’s engine type.<br />
This number is the 8th digit of the VIN (Vehicle Identification Number). Consult your vehicle’s<br />
repair manual for details.<br />
Application Table Definitions. EFI = Electronic Fuel Injection; FBC = Feedback Carburetor;<br />
MFI = Multiport Fuel Injection; OHC = Overhead Cam; SC = Super Charged; SEFI =<br />
Sequential Electronic Fuel Injection; SFI = Sequential Fuel Injection<br />
TEST CONNECTORS<br />
Ford vehicles are equipped with<br />
special test connectors that make<br />
it possible to connect specialized<br />
testing equipment that communicates<br />
with the vehicle's onboard<br />
computer. Ford's vehicle test<br />
connectors are usually dark in<br />
color (BLACK or GREY). Sometimes<br />
they have a plastic cover<br />
over them or are labeled EEC Test.<br />
The connectors can be found in<br />
the following general locations in<br />
the engine compartment: EEC-IV TEST CONNECTOR<br />
CanOBD2&1 77<br />
6-PIN<br />
SINGLE<br />
PIN